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To The Best Of Our Knowledge

Arika Okrent is a linguist and the author of "In the Land of Invented Languages: Esperanto Rock Stars, Klingon Poets, Logian Lovers, and the Mad Dreamers Who Tried to Build A Perfect Language."

To The Best Of Our Knowledge

A researcher stumbles on a key to rapid evolution in this story by Jeff Bauer.

To The Best Of Our Knowledge

After all the debates about the Muslim world, it’s refreshing to look back at one of the world’s great mystics - the Sufi poet Rumi.

To The Best Of Our Knowledge

Human and animal history is so intertwined it's hard to imagine one species without the other.

To The Best Of Our Knowledge

Historian Donald Sassoon tells Jim Fleming that the Mona Lisa is a great painting, but that other factors conspired to make it an international icon.

To The Best Of Our Knowledge

Emily Rapp had her foot amputated when she was 4, and the rest of the leg at age 8.

To The Best Of Our Knowledge

According to Cesar Millan, dogs need exercise, discipline and affection, in that order.

To The Best Of Our Knowledge

Edmund Morris says Theodore Roosevelt was a force of nature  - man of towering intellect, boundless physical energy and firm convictions whose greatest achievement as President was his commitment to conservation.

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